ArtCNN as a filter

[octopushugger]

Expected behavior 预期的功能

Add ArtCNN, a newer high quality scaling filter. https://github.com/Artoriuz/ArtCNN
Variant C4F16 RGB would probably make the most sense for magpie I think.

Better quality than any of the existing filters for art content. FSRCNNX might win in some cases.

DIV2K variant might be useful for certain types of content.

Alternative behavior (optional) 近似的功能（可选）

No response

[octopushugger]

I changed my mind I think C4F32 RGB probably makes more sense since it offers more benefit over the existing filters. I tested some more and the difference between 16 and 32 becomes more obvious with lower source resolutions.

[Blinue]

If we only need the RGB variants, it would be a good idea to port both ArtCNN_C4F16_RGB and ArtCNN_C4F32_RGB.

[kato-megumi]

ArtCNN.zip
ArtCNN RGB variants ported to onnx. Only work with https://github.com/Blinue/Magpie/releases/tag/onnx-preview1

Personally not very impressed with its results.
PS: porting thing to onnx is magnitude easier than to hlsl.

GitHub

Release onnx-preview1 · Blinue/Magpie

中文版 一个支持 ONNX 模型的实验性版本，如果遇到任何问题请在 #772 中讨论��� 如何使用 不支持通过 UI 指定 ONNX 模型，你应该编辑根目录中的 model.json。 示例： { "path": "2x_AnimeJaNai_HD_V3_UltraCompact_425k-fp16.onnx", "scale": 2, "backend": "dire...

[octopushugger]

Wow that fast and I can already use it. Thank you!

[hooke007]

https://github.com/Artoriuz/ArtCNN/tree/main/ONNX is maintained officially

GitHub

ArtCNN/ONNX at main · Artoriuz/ArtCNN

Super-Resolution Convolutional Neural Networks as GLSL shaders for mpv - Artoriuz/ArtCNN